Senior CNO Developer

MANTECH seeks a skilled and innovative Senior CNO Developer to join our team in Aurora, CO.

In this role, you will contribute to the development of mission‑critical cyber capabilities, drive excellence in CNO development and lead efforts in advanced Computer Network Operations (CNO). You’ll be part of a dynamic team working on next‑generation solutions that safeguard national security systems.

• Design and develop new hardware- or software-based CNO capabilities.
• Manage the design, development, documentation, testing, and debugging of software applications and systems.
• Apply expert knowledge of network and security concepts to support capability development.
• Communicate status updates and technical progress to leadership and stakeholders.
• Ensure software quality and compliance with development standards.

• High school diploma and 8+ years of technical work experience, or BS degree and 4+ years of technical work experience, or MS degree and 2+ years of technical work experience, or PhD and 0+ years of relevant experience.
• Experience in Python and C/C++ programming languages.
• Experience with troubleshooting and debugging.
• Experience with low‑level system internals across one or more platforms (e.g., Windows, Unix, Mobile, or network devices).
• Experience with networking protocols (TCP/IP) and socket‑level programming.
• Experience with developing CNO capabilities.
• Experience in managing and leading development teams.

• Experience in software analysis or reverse engineering.
• Understanding of assembly language programming concepts.
• Familiarity with unit testing frameworks and practices.
• Experience using Atlassian tools (JIRA, Confluence, Crucible).

• An active/current TS/SCI with ability to obtain Polygraph is required.

• Must be able to remain in a stationary position at least 50% of the time.

Man Tech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with Man Tech through its online applicant system, please email us at  and provide your name and contact information.